CN101390143A - Display panel having laser induced light redirecting features - Google Patents

Display panel having laser induced light redirecting features Download PDF

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Publication number
CN101390143A
CN101390143A CNA2007800067584A CN200780006758A CN101390143A CN 101390143 A CN101390143 A CN 101390143A CN A2007800067584 A CNA2007800067584 A CN A2007800067584A CN 200780006758 A CN200780006758 A CN 200780006758A CN 101390143 A CN101390143 A CN 101390143A
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China
Prior art keywords
substrate
feature
radiation
electromagnetic radiation
described substrate
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Granted
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CNA2007800067584A
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Chinese (zh)
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CN101390143B (en
Inventor
M·阿巴布
A·D·波尔辛
D·A·拉甘
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Vetro Flat Glass Co., Ltd.
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PPG Industries Inc
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10Beam splitting or combining systems
    • G02B27/14Beam splitting or combining systems operating by reflection only
    • G02B27/145Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/0101Head-up displays characterised by optical features
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/08Mirrors
    • G02B5/0883Mirrors with a refractive index gradient
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033Means for improving the coupling-out of light from the light guide
    • G02B6/0035Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00Advertising or display means not otherwise provided for
    • G09F19/12Advertising or display means not otherwise provided for using special optical effects
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/0101Head-up displays characterised by optical features
    • G02B2027/0118Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings

Abstract

The present invention discloses a display panel 10 having a substrate 12 with one or more surfaces and one or more features 30 within the substrate 12, when one or more surfaces of the substrate 12 are illuminated, the features 30 redirect the illumination to form an image.

Description

Display board with light redirecting features of induced with laser
Cross reference to related application
The application requires the right of priority at the U.S. Provisional Application No.60/758376 of submission on January 12nd, 2006, adds the full content of this provisional application by reference at this.
Technical field
The present invention relates generally to display device and signalling (signaling) equipment and manufacture method thereof, and, in a specific non-limiting example, relate to display device and signalling equipment and manufacture method thereof with transparency carrier.
Background technology
Various types of display device, for example display board (panel) such as label (sign), signalling equipment etc., is used widely.One type conventional display board is by printing letter and/or digital making on substrate with pigment, dyestuff etc.Substrate such as steel, timber, glass etc. can be used to make display board.The example of such display board comprises general bulletin board (placard) and label.The display board of the routine of another kind of type uses dynamic display.The example of such dynamic display panels comprises LCD, light emitting diode (LED) display etc.The display board of the routine of another type comprises neon tube and the similar staticizer that more or less shows fix information again.
For aesthetics or actual purpose, may wish to select one type display board rather than another kind.For example, the label that has letter and/or numeral on transparency carrier such as showcase allows client to see the goods that shows with observation post in the shop through most window.As another example, when it being closed, may wish to use the rainbow label to convey a message when thinking people to want to open label at night.
Be desirable to provide with known display device and compare display device with improved performance.It would also be desirable to provide can be along the display device of one or more predetermined direction with direct electromagnetic radiation (direct) or redirected (redirect).
Summary of the invention
A kind of device comprises at least one the radiation alignment features in substrate and the substrate.Described feature is configured to mainly along predetermined direction direct electromagnetic radiation.
A kind of display device comprises having substrate and at least one interior radiation alignment features of substrate of observing the surface.Described feature is configured to mainly towards observing at least a portion orientation of surface with the electromagnetic radiation in the substrate.
A kind of manufacture method of display board is included in the beam (beam) that makes radiation in the substrate and focuses on, and is configured to the main radiation alignment features that will introduce the radiation orientation in the substrate along predetermined direction with formation.
Description of drawings
With reference to following description of drawings the present invention, wherein, similar Reference numeral part like the representation class all the time.
Fig. 1 is the synoptic diagram (not in scale) of a part that comprises the display device of feature of the present invention;
Fig. 2 is the synoptic diagram (not in scale) of a part that comprises another display device of feature of the present invention;
Fig. 2 A is the synoptic diagram (not in scale) of a part that comprises the other display device of feature of the present invention;
Fig. 3 is the synoptic diagram (not in scale) of a part that comprises the another display device of feature of the present invention;
Fig. 4 is the synoptic diagram (not in scale) that is used to make the equipment of the display device with feature of the present invention;
Fig. 5 A and Fig. 5 B are the synoptic diagram (not in scale) that is in the display device of the present invention of the inactivation (Fig. 5 A) and (Fig. 5 B) state of activation.
Embodiment
As used herein, such as " left side ", " right side ", " interior ", " outward ", " on ", as shown in the figures related to the present invention like that of the space of D score etc. or direction term.But should be understood that the present invention can take various substituting orientations, therefore such term should not be regarded as restriction.And as used herein, all numerals of the amount of the expression size of using in instructions and claims, physical characteristics, processing parameter, composition and reaction conditions etc. all should be understood that to be modified by term " approximately " in all cases.Therefore, unless be designated as opposite situation, the numerical value of setting forth in the following description book and claims can be looked for the hope performance of acquisition according to the present invention and change.At least, and not, should explain each numerical value according to the quantity of the significant figure of being reported (significantdigit) and by using common rounding off (rounding) technology at least as the attempt of the application of the equivalent principle of restriction claim scope.And all scopes disclosed herein should be understood that to comprise any He all subranges that beginning and the value range that finishes and there comprise.For example, the scope of being stated " 1 to 10 " should be regarded as comprising any He all subranges of (and comprising minimum value 1 and maximal value 10) between minimum value 1 and the maximal value 10; That is, with minimum value 1 or bigger beginning and with all subranges of maximal value 10 or littler end, for example, 1 to 3.3,4.7 to 7.5 and 5.5 to 10 etc.Term " visibility region " or " visible light " refer to the electromagnetic radiation of the wavelength in the scope with 380nm to 800nm.Term " region of ultra-red " or " infrared radiation " refer to the electromagnetic radiation that has greater than the wavelength of 800nm in the scope of 100000nm.Term " ultraviolet region " or " UV radiation " refer to has 300nm to the electromagnetic energy less than the wavelength in the scope of 380nm.That mentions here in addition, should be regarded as " by with reference to adding " their full content such as, but not limited to the patent of issue and the All Files of patented claim.The value that " transmission of visible light " and " predominant wavelength " value is to use conventional method to determine.
The invention provides and to be but to be not limited to be used for along the novel article of one or more predetermined direction with the display board of light orientation.Can on display board, show image (being called " image " here individually and collectively) such as, but not limited to message, signal, sign (logo) etc.In certain embodiments, image may be not visible for bore hole always.For example, in order to see image, one or more surface of plate can be illuminated.As used herein, term " surface " comprises two first type surfaces (being front surface and rear surface for rectangular article for example) of article and the edge (side) of article.In a non-restrictive example, when for example illuminating one or more surface of plate by edge light, image is visible at least one surface of plate.
For the purpose of following discussion, the present invention is discussed with reference to the use of " display board ".As used herein, term " display board " refers to and is designed to practice according to the present invention with direct electromagnetic radiation and/or show any article of one or more image.The example of display board is only enumerated several including but not limited to signboard (signage), signaling device, window, windscreen, side lamp, back light, sunroof (sunroof) and moon roofs (moon roof).But should understand, the invention is not restricted to the use of these article of mentioning especially, but the article in the field of available any hope implement, such as, but not limited to stacked or non-stacked dwelling house and/or commercial window, insulating glass unit and/or be used for the transparent body (transparency) of land, sky (air), space, waterborne and underwater vehicle (vehicle).Therefore, should be appreciated that providing disclosed especially exemplary embodiment only is in order to explain universal of the present invention, and, the invention is not restricted to these specific exemplary embodiments.
Comprising the nonrestrictive display board 10 of feature of the present invention shown in Fig. 1 to 3.As seeing best among Fig. 1 and Fig. 2, display board 10 comprises substrate 12, and this substrate 12 is shown to have the rectangular substrate 12 of first first type surface (front surface) 14, second first type surface (rear surface) 16, leading edge 18, back edge 20, left hand edge 22 and right hand edge 24 in the non-limiting example that illustrates.In the illustrated embodiment, first first type surface 14 of substrate 12 comprises observation surface 26.Substrate axis 28 is passed substrate 12 at least in part and is extended, and at least a portion of substrate axis 28 is parallel with observation surface 26 basically.Should be appreciated that the use that the invention is not restricted to rectangular substrate, but can be used,, only enumerate several such as, but not limited to sphere, square, taper shape, cone-shaped, ellipse or cylindrical with any substrate shape.In addition, the facing surfaces of substrate 12 or edge are unnecessary is parallel to each other.As following illustrating in greater detail, display board 10 comprises one or more energy directional feature 30.Feature 30 be configured to optionally or preferentially along one or more predetermined direction (for example towards observe surface 26) with electromagnetic radiation (for example visible light) orientation.
In practice widely of the present invention, the substrate 12 of display board 10 can be the material of any hope with characteristic of any hope.For example, substrate 12 can be for visible transparent or translucent." transparent " means to have the transmission of visible light that arrives less than 100% greater than 0%.Scheme as an alternative, substrate 12 can be translucent." translucent " means and allows electromagnetic energy (for example, visible light) to pass but make this energy diffusion (diffuse) make that the object of a relative side with the observer can not be clearly as seen.Suitable examples of material including but not limited to: plastic base (such as: such as the acrylate copolymer of polyacrylate; Poly-alkylmethacrylate (polyalkylmethacrylate) such as polymethylmethacrylate, polyethyl methacrylate and polypropylmethacryla,es etc.; Polyurethane; Polycarbonate; Such as polyethylene terephthalate (polyethyleneterephthalate, PET), the polyalkylterephthalaor (polyalkylterephthalate) of polytrimethylene terephthalate (polypropyleneterephthalate) and polybutylene terephthalate (polybutyleneterephthalate) etc.; The polymkeric substance that comprises polysiloxane; Or be used to prepare multipolymer or its any potpourri of these any monomer); Ceramic substrate; Glass substrate or above in any potpourri or combination.For example, substrate 12 can comprise conventional soda-lime-silicate glass, borosilicate glass or flint glass.Glass can be limpid glass." limpid glass " means not painted (non-tinted) or not with the glass of look (non-colored).Scheme as an alternative, glass can be painted or otherwise be the glass of band look.Glass can be to be annealed or by heat treated glass.As used herein, term " by thermal treatment " means by tempering or at least in part by tempering.Glass can be any kind, such as the float glass of routine, and can be for having any composition of any optical property, for example visible light transmission of any value (transmission), ultraviolet (uv) transmission, infrared transmitting and/or total sun power transmission." float glass " means that in this floating process, the glass of fusion is deposited to melt metal and bathes on (bath) by the glass of the floating process formation of routine, and controllably cooled off to form float glass belt.As desired band is cut then and/or setting and/or thermal treatment.The example of float glass technology is disclosed in U.S. Patent No. 4466562 and 4671155.Though be not limited to the present invention, the example of the glass that is suitable for substrate 12 be described in U.S. Patent No. 4746347,4792536,5030593,5030594,5240886,5385872 and 5393593.Substrate 12 can be the size of any hope, for example length, width, shape or thickness.In an exemplary non-limiting example, substrate 12 can be for 1mm to 10mm be thick, and for example, 1mm to 5mm is thick, or 1.5mm to 2.5mm, or 1.8mm to 2.3mm.
In a non-restrictive example, substrate 12 can have high visible light transmissivity in the reference wave strong point of 550 nanometers (nm)." high visible light transmissivity " means the transmission of visible light at the 550nm place more than or equal to 85%, such as more than or equal to 87%, such as more than or equal to 90%, such as more than or equal to 91%, such as more than or equal to 92.Put into practice useful nonrestrictive high visible light transmissivity glass and in U.S. Patent No. 5030593 and 5030594, be disclosed of the present invention, and commercial can be with trade mark Starphire
Figure A200780006758D0009172408QIETU
Obtain from PPG Industries Inc..
In a non-restrictive example, feature 30 has the refractive index different with baseplate material.Can realize the difference of refractive index in the mode of any hope.In a non-restrictive example, feature 30 can (1) have and the different density of substrate of surrounding its next-door neighbour (immediate vicinity), for example higher density; (2) have and the different composition of substrate that surrounds its next-door neighbour; Or (3) are different with the substrate that surrounds its next-door neighbour on mechanics, for example, have localization stress area and/or comprise crack in the substrate.As used herein, " next-door neighbour " refers to and leaves the distance of feature 30 in 10 microns to 1 millimeter scope, such as less than 1000 microns, such as less than 500 microns, such as less than 200 microns.Feature 30 can have the refractive index different with substrate 12 on every side.In a non-restrictive example, feature 30 can have the refractive index different with material on every side, for example higher refractive index.For example, feature 30 can have the refractive index that differs (for example higher) at least 0.002 with on every side material, than the refractive index of the substrate 12 that surrounds its next-door neighbour such as high by 0.004, such as high by 0.006, such as high by 0.008, such as high by 0.01, such as high by 0.02, such as high by 0.03, such as high by 0.05, such as high by 0.07, such as high by 0.09, such as high by 0.1, such as high by 0.2, such as high by 0.3, such as high by 0.5, such as high by 0.7, such as high by 0.9, such as high by 1.0.Change of refractive between feature 30 and the material on every side can be mild (gradual) or unexpected.For discrete feature (such as among Fig. 1 to 2A those), the comparable continuous feature 30 shown in Figure 3 of change of refractive (it is desirable to the more unexpected variation of refractive index, to prevent or reduce electromagnetic energy " leakages " outside continuous feature) is milder.
For glass substrate 12, when top (1) where applicable, feature 30 will be made by glass, and can have with its next-door neighbour in the different density of glass, for example higher density.When top (2) where applicable, feature 30 can be for example produced by the polymerization of the monox network in the block of glass substrate 12, and described polymerization can be used as sodium atom and moves in the glass and leave the result of feature 30 and take place.When top (3) where applicable, can in glass substrate 12, form localized stresses and/or crack in substrate 12, to produce new interface.
According to the present invention, feature 30 can be any shape, and various features 30 can be identical or different shape.In the non-restrictive example shown in Fig. 1 and Fig. 2, feature 30 has 400 nanometers to 1 millimeter, the length (observing from the side) in 1 micron to 5 microns the scope for example.Each feature 30 can have identical or different size.Embodiment illustrated in figures 1 and 2 utilizes a plurality of single features 30 that separate.In Fig. 1, at least some in delegation in (in a plane) arrangement of features 30.In Fig. 2 and Fig. 2 A, at least some in different row in (that is, different plane in) arrangement of features 30.Display board 10 can comprise the feature 30 that is in one or more plane and has one or more orientation.In the embodiment shown in fig. 3, feature 30 is taked to pass substrate 12 and extend and have the waveguide of first end 32 and second end 34 or a form of conduit to small part.Feature among Fig. 3 can have the tubular in shape such as the cross section of any hope of circle, ellipse, polygon (for example, square, triangle etc.) etc.First and second ends 32,34 need not stop on one in the surface of substrate 12, and can begin in substrate 12 and finish.
With at first describing the example fabrication method of display board 10 of the present invention, the operation of the various embodiment of display board 10 will be described then with reference to Fig. 4.The exemplary apparatus 40 that is used to make display device of the present invention shown in Figure 4.Equipment 40 comprises the holding device 42 that is used for keeping (hold) and fixing base 12.Equipment 40 also comprises laser instrument 44 and condenser lens 46.Randomly, equipment 40 also can comprise or utilize conventional prism 48.Film 51 such as the refractive index match fluid of water can be between the surface of prism 48 and substrate 12.
Laser instrument 44 can be conventional pulsed laser, such as, but not limited to nanosecond, psec (picosecond) or femtosecond (femtosecond) pulsed laser of routine.Suitable laser instrument is including but not limited to the sapphire laser or yttrium aluminum garnet (YAG) laser instrument of the Doped with Titanium that for example has the wavelength in the near infrared region.It is 280nm to 1560nm that suitable especially laser instrument comprises wavelength coverage, such as 700nm to 1064nm, the burst length scope was 100 femtosecond to 5 nanoseconds, power bracket is the burnt pulsed laser of 1 to 5 milli.
Lens 46 can be the lens of any routine, such as, but not limited to 10 * to 20 * micro objective.Lens 46 can be for the electromagnetic radiation highly transparent of being emitted by laser instrument 44.
Substrate 12 and laser instrument 44 can relative to each other move.For example, in the illustrated embodiment, holding device 42 comprises can be used to the mobile device 50 of edge with respect to any direction moving substrate 12 of laser instrument 44.But, can conceive the mobile laser instrument 44 of energy, condenser lens 46 and prism 48 assemblies rather than substrate 12 equally.
In order to form feature 30 in substrate 12, adjustment equipment 40 makes the focus of laser instrument 44 be in the substrate 12.When laser instrument 44 was energized, electromagnetic radiation was passed condenser lens 46 and is passed prism 48 and arrives in the substrate 12.Be an angle and aim at the reflection loss that (point) will occur with respect to substrate surface if prism 48 helps to reduce laser instrument 44.Refractive index match fluid such as oil can place between prism 48 and the substrate 12.At the focus place, electromagnetic radiation for example causes forming feature 30 by density and/or the optical property that changes baseplate material.Be appreciated that owing to laser instrument 44 is an angle 52 with respect to the surface of substrate 12 from Fig. 4 and locate that therefore, the longitudinal axis 54 of feature 30 also will be from the base plan 58 skew similar angle 56 of passing feature 30.After forming a feature 30, can activate mobile device 50 so that substrate 12 is shifted, thereby in substrate 12, the focus of laser instrument 44 be reorientated.Can activate laser instrument 44 once more then, and in substrate 12, form another feature 30.If only 58 translations along the plane of substrate 12 cause the structure of all structures as shown in Figure 1 so.Based on the angle of laser instrument 44 with respect to substrate 12, feature 30 will typically have oval or round-shaped, for example have diameter in the scope that is in 400nm to 1mm (if ellipse then is major axis), such as 400nm to 300 micron, such as 400nm to 200 micron, such as 400nm to 100 micron, such as 400nm to 50 micron, such as 400nm to 10 micron, such as 400
Nm to 5 micron, such as 400nm to 1 micron.The feature 30 of per unit area that is appreciated that the more little and substrate 12 of the diameter of feature 30 is few more, and then feature 30 will be sightless more for bore hole.
If substrate 12 direction translation of 58 but also change distance apart from laser instrument 44 along the plane so, can form the structure of all structures as shown in Figure 2 so.If substrate 12 translations and rotation or rotation can form the structure of structure shown in Fig. 2 A so.
Scheme as an alternative, equipment 40 can be used to form as shown in Figure 3 cylinder or the feature 30 of tubular form.Columniform feature 30 can be straight or crooked, and as optical channel or waveguide and work.It will be understood by those skilled in the art that feature 30 in order to form tubular-like, can be to locate substrate 12 with similar mode shown in Figure 4.The focus of laser instrument 44 can be positioned in substrate 12 such as near the edge of lower limb or its, and laser instrument 44 is activated.When laser instrument 44 is activated (for example producing pulse), can uses mobile device 50 with the position of moving substrate 12 lentamente or incrementally, thereby form the feature 30 of tubular-like shown in Figure 3 with the focus of adjusting laser instrument 44.
The operation of the various non-limiting examples of display board 10 of the present invention will be described now.Referring to Fig. 1, feature 30 forms in substrate 12, and is positioned as formation pattern or image when being illuminated.The observation surface 26 of the display board 10 when for example, Fig. 5 a illustrates display board 10 and is not illuminated.By observing with bore hole, feature 30 may be can not detected or only be a little can be detected.This is because the little size of feature 30.But, return Fig. 1, when electromagnetic radiation source (for example, light source 60) is activated and is oriented at substrate 12 places, for example during right hand edge 24 places at substrate 12, is directed in the inside of substrate 12 from least some of the electromagnetic radiation 62 of light source 60.
As can be seen from Figure 1, when electromagnetic radiation 62 contacted with feature 30, at least a portion of the radiation 62 of Impact Characteristic 30 was redirected towards observing surface 26 from its original path.Therefore, the small mirror in reflection of feature 30 picture or path that electromagnetic radiation 62 is redirected and working.The observation surface 26 of the display board 10 when Fig. 5 b illustrates light source 60 and illuminates is to disclose the image that forms by 30 radiation reflected of the feature from be arranged in substrate 12.
Embodiment shown in Figure 2 works in a similar fashion, with mainly towards observing surface 26 with radiation 62 orientations.But, in the embodiment shown in Fig. 2 A, along several different directions with radiation 62 orientations.
Embodiment shown in Figure 3 can be to work with the similar mode of aforesaid way.That is, light source 60 is close to first end 32 of elongated (elongated) features 30 and is positioned.When light source 60 is activated, passes first end 32 from the electromagnetic radiation 62 of light source 60 and enter in the feature 30, and be directed to second end 34 from first end 32.Because the refractive index difference between feature 30 and the glass on every side, the light that enters feature 30 is not reflected out and gets back in the glass substrate, but is retained in the feature 30.
Of the present invention widely aspect in, feature 30 can be three-dimensional, and can have any aspect ratio.Each feature 30 can have identical or different aspect ratio.Feature 30 can be orientated with any angle with respect to the surface of substrate 12.Various features 30 can be orientated with identical or different angle.For example, one or more feature 30 can be with respect to the surface 26 of passing its substrate that will observe image 12 with 45 ° angle and be orientated.The quantity of the feature 30 of the per unit area in the substrate can change in any manner.
According to the present invention, when one or more surface of substrate 12 was illuminated, image was visible by at least one surface of substrate 12.As mentioned above, one or more surface of illuminating substrate comprises edge light.In non-restrictive example, image on the comparable surface at other on the surface of substrate 12 is being more visible (that is, on the surface of image at substrate 12 than stronger on the surface at other).Preferentially be redirected rather than when directed randomly, this effect can occur when the feature in the substrate 12 30 is designed to cause illumination light along a direction.
In a non-restrictive example, feature 30 mainly will be from the light-redirecting of the Impact Characteristic 30 of light source 60 along a direction." mainly " mean greater than 50% the light that is redirected and advance along a predetermined direction, for example, the light that is redirected greater than 75%, for example, or greater than 85% the light that is redirected.In other words, in a predetermined manner anisotropically with the light orientation, rather than along all directions isotropically with the light orientation.Scheme as an alternative, from Fig. 2 A be appreciated that feature 30 can be grouped with along several different directions with light-redirecting.For example, one group feature 30 can be along first direction with light-redirecting, and the feature 30 of another group can be along different directions with light-redirecting.
The image that can show what type about display board 10 without limits.For example, the form of image can be words, different shape, sign, symbol etc.By using different band color light source 60, pass substrate 12 visible shades of colours.
In non-restrictive example, in substrate 12, show different images according to what surface of illuminating substrate 12.For example, can show " NO " when surperficial when one that illuminates substrate 12, and, when illuminating another surface, can show " YES ".
In another non-restrictive example, a plurality of surfaces that can illuminate substrate 12 with different band color light source 60 simultaneously are to show multicolor image.Scheme as an alternative, different features 30 can preferentially reflect the electromagnetic radiation of different wave length.Therefore, a plurality of features of illuminating with same light source 30 are orientable or reflect multiple color.
According to the present invention, because the feature 30 in the substrate can be along one or more specific direction with the light orientation when one or more surface of substrate 12 is illuminated, therefore, display board 10 can be used for various purposes with light-redirecting.For example, display board 10 can be to be used in the room along the skylight of specific direction with the day light-redirecting.
According to the present invention, the light source 60 that is used for illuminating the surface of substrate can be any light source that can be used to provide at substrate the message, label, sign, advertisement etc. of hope.Scheme as an alternative, light source 60 can provide such as the electromagnetic radiation in the nonvisible wavelength scope of infrared (IR) and/or ultraviolet (UV) wavelength coverage, and, feature 30 can be configured to make them only to reflect radiation in these invisible scopes, to form for bore hole invisible but available suitable wave filter, lens or the detected image of receiver.Suitable light source is including but not limited to visible wavelength lasers device, Halogen lamp LED and incandescent lamp, versicolor LED, IR radiation source and UV radiation source etc.Illuminating of surface can be directly from light source 60, perhaps indirectly for example from the optical fiber that is right after light source 60.Illuminated surface makes light source 60 can be placed in apart from a certain distance of article indirectly.
In non-restrictive example, suitable light source is the direct natural light of sunray for example.
Can use article of the present invention in every way.For example, described article can be used as for example central height and put Brake lamp (center high mounted stop lamp in delivery vehicle, CHMSL), such as the signaling device of turn signal (turn signal) etc. or HUD (heads-up display, HUD).Article of the present invention also can be used as for example signboard in restaurant, or are used for showing such as the symbol that identifies at glass laminate.
In non-restrictive example, article of the present invention can be contained in the substrate that contains photosensitive (photoactive) element or be used as the lid (cover) of photovoltaic devices.Article of the present invention for the purpose of the amount that increases the energy that produces by light activated element towards light activated element with light-redirecting.As another nonrestrictive example, article of the present invention are in window, with for illumination purposes towards the specific region in room with light-redirecting, such as the zone that can not receive a lot of natural lights.
In another possible non-limiting application, can make feature 30 at strong light source scattered light consumingly or during edge-illuminated display board 10 from specific surface, disclose the thing that defect pattern and hidden (obscure) are in display board 10 back thus.If from any other surface or the edge with light source orientation, if in any case so defect pattern can see, also be visible reluctantly.Do not have strong light source, defect pattern can be complete or sightless basically for naked eyes.By opening and closing light source, can be remotely hidden or disclose the thing of glass back.
In a non-restrictive example, device of the present invention need be when not being illuminated display image, but can be used to will be redirected such as, but not limited to the electromagnetic radiation of natural light along one or more predetermined direction.For example, feature 30 of the present invention can be added in the building transparent body such as window, skylight etc., with preferentially towards the specific part in room with the daylight orientation.
In addition, introduce by radiation source 60 that light wavelength in the substrates 12 can be selected as mating or the transmission performance of complementary baseplate material.For example, if baseplate material transmit green but stop or absorb blue light or ruddiness can be used the radiation source 60 that is configured to transmitting green light so.That is, radiation source 60 can be selected as mating for substrate 12 the most transparent wavelength or wavelength coverage.Scheme as an alternative, the composition of substrate 12 can be selected as complementation or coupling is wished by the wavelength of transmission.Baseplate material or composition can be selected as absorbing or stop (for example, filtering) one or more plant undesirable wavelength, and transmission one or more plant the wavelength of wishing.
Those skilled in the art are readily appreciated that, can modify for the present invention, and not deviate from disclosed in the above description notion.These modifications should be regarded as being contained in the scope of the present invention.Therefore, more than the specific embodiment of Xiang Xishuominging only is indicative, and is not restrictive for scope of the present invention, and scope of the present invention should be given whole ranges of claims and any He all equivalent thereof.

Claims (18)

1. device comprises:
Substrate; With
At least one radiation alignment features in the described substrate, described feature are configured to the predetermined direction in main edge with direct electromagnetic radiation.
2. according to the device of claim 1, wherein, described substrate comprises glass.
3. according to the device of claim 1, wherein, described feature has than the high density of described substrate among its next-door neighbour.
4. according to the device of claim 1, wherein, described feature has than the high refractive index of described substrate among its next-door neighbour.
5. according to the device of claim 1, wherein, described feature have with its next-door neighbour in the different composition of described substrate.
6. according to the device of claim 1, wherein, described feature comprises at least one crack in the described substrate.
7. according to the device of claim 1, wherein, described feature comprises the stress area of at least one localization in the described substrate.
8. according to the device of claim 1, wherein, described substrate comprises observes the surface, and described at least one feature be configured to inside from described substrate to described observations surface with the radiation orientation with the formation image.
9. according to the device of claim 1, wherein, the electromagnetic radiation in the wavelength coverage that described feature is configured to determine is redirected.
10. according to the device of claim 9, wherein, described feature is configured to the electromagnetic radiation in IR and/or the UV wavelength coverage is redirected.
11., comprise being configured to along a plurality of features of a plurality of directions with direct electromagnetic radiation according to the device of claim 1.
12. according to the device of claim 1, wherein, described feature has refractive index with described substrate and differs at least 0.002 refractive index.
13., comprise the radiation source of contiguous display device according to the device of claim 1.
14. according to the device of claim 1, wherein, described radiation alignment features comprises tubular feature.
15. according to the device of claim 1, wherein, described device is that central height is put Brake lamp.
16. a display device comprises:
Has the substrate of observing the surface; With
At least one radiation alignment features in the described substrate, described feature are configured to mainly towards described at least a portion orientation of observing the surface with the electromagnetic radiation in the described substrate.
17. a display device comprises:
Has the substrate of observing the surface;
A plurality of radiation alignment features in the described substrate; With
Be configured to electromagnetic radiation is incorporated into electromagnetic radiation source in the described substrate,
Wherein, described feature is configured to mainly will be incorporated at least a portion orientation of the electromagnetic radiation in the described substrate by described electromagnetic radiation source towards described observation surface.
18. the manufacture method of a display board comprises:
In substrate, make the beam focusing of radiation, be configured to the main radiation alignment features that will be incorporated into the radiation orientation in the described substrate along predetermined direction with formation.
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Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5317704B2 (en) 2006-01-12 2013-10-16 ピーピージー・インダストリーズ・オハイオ・インコーポレイテッド Display panel having function of redirecting light introduced by laser
US8629610B2 (en) * 2006-01-12 2014-01-14 Ppg Industries Ohio, Inc. Display panel
US7974508B2 (en) 2009-02-03 2011-07-05 Nitto Denko Corporation Multi-layer structure and method for manufacturing the same
EP2214040A1 (en) 2009-02-03 2010-08-04 Nitto Denko Corporation Multi-Layer Structure and Method for Manufacturing the Same
DE102009007198A1 (en) * 2009-02-03 2010-08-12 GM Global Technology Operations, Inc., Detroit Vehicle with dashboard and display device for the dashboard and a method of manufacturing the display device
WO2010090600A1 (en) * 2009-02-03 2010-08-12 Nitto Denko Corporation Multi-layer structure and method for manufacturing the same
JP6229263B2 (en) * 2011-12-12 2017-11-15 三菱ケミカル株式会社 Method for manufacturing light guide for surface light source device
EP2765353B1 (en) * 2013-02-06 2018-11-07 Hartmut S. Engel Lamp with a Light conducting disc assembly
US9588713B2 (en) * 2013-09-17 2017-03-07 Philips Lighting Holding B.V. Lighting device
US10288792B2 (en) * 2014-01-29 2019-05-14 Corning Incorporated Laser featured glass for display illumination
DE102015119875A1 (en) 2015-06-19 2016-12-22 Laser- Und Medizin-Technologie Gmbh, Berlin Lateral-emitting optical fibers and method for introducing micro-modifications into an optical waveguide
CN105445933B (en) * 2015-12-22 2018-06-26 中国科学院长春光学精密机械与物理研究所 A kind of high-resolution moon edge optical image-forming objective lens
EP3400403A1 (en) * 2016-01-05 2018-11-14 Corning Incorporated Laminated light diffusing optical fiber
US11248959B2 (en) 2017-10-20 2022-02-15 Ecole polytechnique fédérale de Lausanne (EPFL) Multi-spectral image printing method

Family Cites Families (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL128086C (en) * 1957-05-03 1900-01-01
US3843346A (en) * 1973-03-06 1974-10-22 Ppg Industries Inc Manufacture of sheet glass by continuous float process
JPS5524632Y2 (en) * 1974-06-07 1980-06-12
US4092518A (en) * 1976-12-07 1978-05-30 Laser Technique S.A. Method of decorating a transparent plastics material article by means of a laser beam
US4466562A (en) * 1981-12-15 1984-08-21 Ppg Industries, Inc. Method of and apparatus for severing a glass sheet
US4671155A (en) * 1985-06-13 1987-06-09 Ppg Industries, Inc. Positioning apparatus
US4746347A (en) * 1987-01-02 1988-05-24 Ppg Industries, Inc. Patterned float glass method
US4792536A (en) * 1987-06-29 1988-12-20 Ppg Industries, Inc. Transparent infrared absorbing glass and method of making
JP2814684B2 (en) * 1990-04-16 1998-10-27 住友電気工業株式会社 Luminescent plate
US5030593A (en) * 1990-06-29 1991-07-09 Ppg Industries, Inc. Lightly tinted glass compatible with wood tones
US5030594A (en) * 1990-06-29 1991-07-09 Ppg Industries, Inc. Highly transparent, edge colored glass
US5240886A (en) * 1990-07-30 1993-08-31 Ppg Industries, Inc. Ultraviolet absorbing, green tinted glass
DE4126626C2 (en) * 1990-08-15 1994-08-04 United Distillers Plc Marked material body and method for its production
US5393593A (en) * 1990-10-25 1995-02-28 Ppg Industries, Inc. Dark gray, infrared absorbing glass composition and coated glass for privacy glazing
ATE142763T1 (en) * 1991-01-16 1996-09-15 Lumitex Inc THIN PLATE LAMP
US5287427A (en) 1992-05-05 1994-02-15 At&T Bell Laboratories Method of making an article comprising an optical component, and article comprising the component
US5500031A (en) * 1992-05-05 1996-03-19 At&T Corp. Method for increasing the index of refraction of a glassy material
JP2644663B2 (en) 1993-03-08 1997-08-25 工業技術院長 Method of changing refractive index by light induction
EP0622343B1 (en) 1993-04-30 1998-01-21 AT&T Corp. Method for increasing the index of refraction of a glassy material
US5637244A (en) * 1993-05-13 1997-06-10 Podarok International, Inc. Method and apparatus for creating an image by a pulsed laser beam inside a transparent material
GB2281129B (en) * 1993-08-19 1997-04-09 United Distillers Plc Method of marking a body of glass
JPH0719775U (en) * 1993-09-14 1995-04-07 筒中プラスチック工業株式会社 Fluorescent display
JP3796775B2 (en) 1994-10-17 2006-07-12 住友電気工業株式会社 Method for increasing the refractive index of silica glass
US5707908A (en) * 1995-01-06 1998-01-13 Nikon Corporation Silica glass
US5684621A (en) * 1995-05-08 1997-11-04 Downing; Elizabeth Anne Method and system for three-dimensional display of information based on two-photon upconversion
US5647040A (en) * 1995-12-14 1997-07-08 Corning Incorporated Tunable optical coupler using photosensitive glass
JP3649835B2 (en) 1996-03-18 2005-05-18 独立行政法人科学技術振興機構 Optical waveguide fabrication method
SE510703C2 (en) * 1996-09-17 1999-06-14 Optisk Forskning Inst Optical organ and method of such organ
US6474107B1 (en) * 1996-12-02 2002-11-05 Franklin W. Dabby Fluorinating an optical fiber preform in a pure aluminum oxide muffle tube
JPH10232638A (en) * 1997-02-19 1998-09-02 Sugimoto Masafumi Electric light device
JPH10265243A (en) 1997-03-26 1998-10-06 Rikagaku Kenkyusho Control of refractive index of silica glass
US6432278B2 (en) * 1997-03-26 2002-08-13 The Institute Of Physical And Chemical Research Method for controlling refractive index of silica glass
US6392683B1 (en) 1997-09-26 2002-05-21 Sumitomo Heavy Industries, Ltd. Method for making marks in a transparent material by using a laser
JP3292294B2 (en) * 1997-11-07 2002-06-17 住友重機械工業株式会社 Marking method and marking device using laser
KR20010024394A (en) * 1997-10-02 2001-03-26 유니버시티 오브 로체스터 Light-induced refractive index changes in low temperature glasses
JP3468450B2 (en) 1998-07-17 2003-11-17 科学技術振興事業団 Method for selective reforming inside solid material and solid material having selectively reformed inside
EP1183214A4 (en) * 1999-04-09 2008-12-17 Univ New Mexico Large photosensitivity in lead silicate glasses
US6442311B1 (en) * 1999-07-09 2002-08-27 Agere Systems Guardian Corp. Optical device having modified transmission characteristics by localized thermal treatment
US6573026B1 (en) * 1999-07-29 2003-06-03 Corning Incorporated Femtosecond laser writing of glass, including borosilicate, sulfide, and lead glasses
EP1266249A4 (en) 1999-09-30 2003-07-16 Corning Inc Deep uv laser internally induced densification in silica glasses
DE29917623U1 (en) * 1999-10-06 1999-12-16 Reitter & Schefenacker Gmbh Display or illumination element for motor vehicles
JP3531738B2 (en) * 2000-02-22 2004-05-31 日本電気株式会社 Refractive index correcting method, refractive index correcting apparatus, and optical waveguide device
DE10015702A1 (en) 2000-03-29 2001-10-18 Vitro Laser Gmbh Method for introducing at least one internal engraving into a flat body and device for carrying out the method
US6333486B1 (en) * 2000-04-25 2001-12-25 Igor Troitski Method and laser system for creation of laser-induced damages to produce high quality images
JP2002014246A (en) * 2000-06-27 2002-01-18 Matsushita Electric Works Ltd Optical waveguide and method for manufacturing the same
JP3522670B2 (en) 2000-08-28 2004-04-26 住友重機械工業株式会社 Laser marking method
US6596967B2 (en) * 2000-10-24 2003-07-22 Edward Miesak Laser based etching device
DE10064742A1 (en) * 2000-12-22 2002-06-27 Thomas Emde Double-glazed window element with internal illumination provided by light sources incorporated in frame construction
US7075112B2 (en) * 2001-01-31 2006-07-11 Gentex Corporation High power radiation emitter device and heat dissipating package for electronic components
US20020186924A1 (en) * 2001-02-22 2002-12-12 Kohnke Glenn E. Grating fabrication method and apparatus
JP4085155B2 (en) 2001-02-23 2008-05-14 独立行政法人産業技術総合研究所 Glass material having refractive index distribution and manufacturing method thereof
JP2003012346A (en) 2001-06-27 2003-01-15 Central Glass Co Ltd Method for coloring plate glass
JP2003035809A (en) 2001-07-25 2003-02-07 Japan Science & Technology Corp Binary lens and its manufacturing method
US6957904B2 (en) * 2001-07-30 2005-10-25 3M Innovative Properties Company Illumination device utilizing displaced radiation patterns
US20030076487A1 (en) * 2001-08-03 2003-04-24 Cannon Bret D. System and method for glass processing and stress measurement
RU2216787C2 (en) * 2001-09-27 2003-11-20 Закрытое акционерное общество "Инел-агентство" Image generation method
US20030099452A1 (en) * 2001-11-28 2003-05-29 Borrelli Nicholas F. Manipulating the size of waveguides written into substrates using femtosecond laser pulses
US6768080B2 (en) 2001-12-17 2004-07-27 Troitski Method for production of laser-induced damage images with special characteristics by creating damages of special space shape
JP2003200700A (en) * 2002-01-07 2003-07-15 Masao Yoshida Collective transparent object having outer surface marking part
US6670576B2 (en) * 2002-04-08 2003-12-30 Igor Troitski Method for producing images containing laser-induced color centers and laser-induced damages
JP2003321252A (en) 2002-04-25 2003-11-11 Japan Science & Technology Corp Process for forming phase-separated region inside glass
US6950591B2 (en) * 2002-05-16 2005-09-27 Corning Incorporated Laser-written cladding for waveguide formations in glass
US6900941B2 (en) * 2002-05-16 2005-05-31 Eastman Kodak Company Light diffuser with colored variable diffusion
JP4095358B2 (en) * 2002-06-25 2008-06-04 日立電線株式会社 Holy waveguide type optical circuit and manufacturing method thereof
JP2004046031A (en) * 2002-07-16 2004-02-12 Hitachi Cable Ltd Filmy glass waveguide and manufacturing method therefor
CA2396831A1 (en) * 2002-08-02 2004-02-02 Femtonics Corporation Microstructuring optical wave guide devices with femtosecond optical pulses
JP3928042B2 (en) 2002-09-26 2007-06-13 独立行政法人産業技術総合研究所 Diffraction grating and manufacturing method thereof
PL396521A1 (en) * 2002-10-08 2011-12-19 Nippon Carbide Kogyo Kabushiki Kaisha Internally illuminated retroreflective presentation device
EP1408362A1 (en) * 2002-10-10 2004-04-14 FER Fahrzeugelektrik GmbH Lamp, in particular vehicle lamp
JP2004196585A (en) * 2002-12-18 2004-07-15 Nippon Sheet Glass Co Ltd Method for forming heterogeneous phase within material with laser beam, structure and optical parts
US6740846B1 (en) * 2003-03-27 2004-05-25 Igor Troitski Method for production of 3D laser-induced head image inside transparent material by using several 2D portraits
JP2004361628A (en) * 2003-06-04 2004-12-24 Akashi Denki Kk Illumination signboard
JP4257411B2 (en) 2003-08-21 2009-04-22 独立行政法人産業技術総合研究所 Glass material having refractive index distribution and manufacturing method thereof
JP2007504982A (en) 2003-09-08 2007-03-08 コニンクリユケ フィリップス エレクトロニクス エヌ.ブイ. Daylight luminescent panel
GB0323922D0 (en) 2003-10-11 2003-11-12 Univ Aston Laser inscription of optical structures in laser crystals
JP2005158370A (en) 2003-11-21 2005-06-16 Toyota Industries Corp Planar light source device and liquid crystal display device
AT413891B (en) 2003-12-29 2006-07-15 Austria Tech & System Tech CIRCUIT BOARD ELEMENT WITH AT LEAST ONE LIGHT WAVEGUIDE, AND METHOD FOR PRODUCING SUCH A LADDER PLATE ELEMENT
JP2005205464A (en) * 2004-01-23 2005-08-04 Okamoto Glass Co Ltd Laser beam machining method, structure and optical element
JP2005255512A (en) 2004-02-13 2005-09-22 Central Glass Co Ltd Rare earth element-containing functional glass and its producing method
JP3108802U (en) * 2004-09-29 2005-04-28 有限会社シミズテクノ display
JP5317704B2 (en) 2006-01-12 2013-10-16 ピーピージー・インダストリーズ・オハイオ・インコーポレイテッド Display panel having function of redirecting light introduced by laser
US7443284B2 (en) * 2006-05-09 2008-10-28 International Business Machines Corporation Method and system for sending events between vehicles
US7972051B2 (en) 2006-09-21 2011-07-05 Motorola Mobility, Inc. Double-sided backlight and assembly incorporating a double-sided light source coupling light guide

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AU2007204856B2 (en) 2011-03-31
KR20080091215A (en) 2008-10-09
US8547008B2 (en) 2013-10-01
JP2009524082A (en) 2009-06-25
AU2007204856A1 (en) 2007-07-19
EP1979889B1 (en) 2012-05-23
CA2637002A1 (en) 2007-07-19
ES2383915T3 (en) 2012-06-27
CN101390143B (en) 2012-09-05
IL192721A0 (en) 2009-02-11
JP5317704B2 (en) 2013-10-16
BRPI0706514A2 (en) 2011-03-29
US20070165976A1 (en) 2007-07-19
RU2444795C2 (en) 2012-03-10
RU2008133029A (en) 2010-02-20
EP1979889A1 (en) 2008-10-15
DK1979889T3 (en) 2012-09-10
IL192721A (en) 2013-03-24
CA2637002C (en) 2012-05-15
WO2007082045A1 (en) 2007-07-19
KR101064859B1 (en) 2011-09-14

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